Gusset luminaire



FIG. 1 is a front elevational view of the design,

FIG. 2 is a top view, thereof,

FIG. 3 is a side elevational view thereof, the reverse side being a mirror image

FIG. 4 is a bottom view thereof,

FIG. 5 is a rear elevational view thereof, and,

FIG. 6 is an enlarged prospective view thereof.

The broken lines shown are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a gusset luminaire, substantially as shown and described. 